/Engine/Plugins/Online/OnlineSubsystem/Source/Public/Interfaces/VoiceInterface.h
This interface is an abstract mechanism for managing voice data. Each platform implements a specific version of this interface.
class IOnlineVoice
FOnPlayerTalkin...
OnPlayerTalkingStateChangedDelegates
Delegate called when a player is talking either remotely or locally Called once for each active talker each frame